Back boring is a process which is used to enlarge the bore diameter and correct
non-concentricity of a shotgun barrel. This process reduces
wall friction between the shot load and barrel thereby reducing
recoil and shortening the shot string. Back boring also allows
the shot load to be controlled by the choke tube rather than
the barrel's bore constriction. This allows the shooter flexibility
to switch choke constrictions as needed with confidence that
the result will reflect that choice. Back boring will greatly
reduce pellet deformation by allowing a more smooth path for
the shot load through the shotgun's bore, and this will provide
a more dense and even pattern.
Ballistic Specialties uses a
line boring machine with a diamond hone running in an oil bath
to produce an absolutely mirror smooth finish with true concentricity
from forcing cone to muzzle After back boring a barrel any previous
chokes will no longer be safe to use with the shotgun and must
be replaced with tubes to match the new larger bore diameter.
Contact us for ordering information.